裂解气压缩机设吸入缓冲罐的目的之一是脱除裂解气中夹带的水和重烃。
参考答案：对
医师进行实验性临床医疗，应当（）
A.征得本人同意
B.经医院批准
C.征得患者本人或者其家属同意
D.经医院批准并征得患者本人或者其家属同意
E.经医院批准或者征得患者本人及家属同意
Ten years had passed the CCTV event People Who Moved China took place in 2002. [ ]
A. when
B. while
C. before
D. since
